beanpea,
If you live in NSW it pays its self off within 5 years for a 1.5KW system
Its an easy sum.
Solar costs
System size 1.5 kW
kWh per year produced 2250
Installation cost $10,615
Minus RECs @ $30 ea $4650
Net cost $5965
Minus approx. gross feed-in
tariff annual payment $1350
Payback time 4.4 years
BTW you can easily buy a 1.5KW system now under $4,000, as recs are above $40.
